| Literature DB >> 24427049 |
Gene C Hsu1, Laci M Singer1, David B Cordes1, Michael Findlater1.
Abstract
In the title compound, C9H13NO2S, the dihedral angle between the thiophene ring and the carbamate group is 15.79 (14)°. In the crystal structure, intra-molecular C-H⋯O inter-actions in tandem with the tert-butyl groups render the packing of adjacent mol-ecules in the [001] direction nearly perpendicular [the angle between adjacent thio-phene rings is 74.83 (7)°]. An inter-molecular N-H⋯O hydrogen bond gives rise to a chain extending along [001]. The crystal studied was found to be a racemic twin.Entities:
Year: 2013 PMID: 24427049 PMCID: PMC3884429 DOI: 10.1107/S160053681302196X
Source DB: PubMed Journal: Acta Crystallogr Sect E Struct Rep Online ISSN: 1600-5368
| C9H13NO2S | |
| Mo | |
| Orthorhombic, | Cell parameters from 1327 reflections |
| θ = 1.0–27.5° | |
| µ = 0.29 mm−1 | |
| Rod, colorless | |
| 0.20 × 0.10 × 0.08 mm | |
| Nonius KappaCCD diffractometer | 2112 independent reflections |
| Radiation source: fine-focus sealed tube | 1816 reflections with |
| φ and ω scans | θmax = 27.5°, θmin = 2.4° |
| Absorption correction: multi-scan ( | |
| 2112 measured reflections |
| Refinement on | Secondary atom site location: difference Fourier map |
| Least-squares matrix: full | Hydrogen site location: mixed |
| H atoms treated by a mixture of independent and constrained refinement | |
| (Δ/σ)max < 0.001 | |
| 2112 reflections | Δρmax = 0.25 e Å−3 |
| 125 parameters | Δρmin = −0.19 e Å−3 |
| 2 restraints | Absolute structure: Flack x determined using 703 quotients [(I+)-(I-)]/[(I+)+(I-)] (Parsons & Flack, 2004). |
| Primary atom site location: structure-invariant direct methods | Absolute structure parameter: 0.53 (4) |
| Geometry. All e.s.d.'s (except the e.s.d. in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell e.s.d.'s are taken into account individually in the estimation of e.s.d.'s in distances, angles and torsion angles; correlations between e.s.d.'s in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell e.s.d.'s is used for estimating e.s.d.'s involving l.s. planes. |
| S1 | 0.13622 (6) | 0.05380 (7) | 0.63359 (7) | 0.02745 (19) | |
| O1 | 0.29399 (16) | 0.2992 (2) | 0.61913 (19) | 0.0273 (4) | |
| O2 | 0.32467 (18) | 0.4564 (2) | 0.80079 (18) | 0.0289 (5) | |
| N1 | 0.23352 (19) | 0.2367 (2) | 0.8305 (2) | 0.0224 (5) | |
| H1N | 0.238 (3) | 0.264 (4) | 0.919 (2) | 0.036 (9)* | |
| C1 | 0.1713 (2) | 0.1041 (3) | 0.7987 (3) | 0.0209 (5) | |
| C2 | 0.1219 (3) | 0.0067 (3) | 0.8902 (3) | 0.0241 (6) | |
| H2 | 0.1317 | 0.0150 | 0.9854 | 0.029* | |
| C3 | 0.0542 (2) | −0.1082 (3) | 0.8269 (3) | 0.0289 (6) | |
| H3 | 0.0137 | −0.1855 | 0.8754 | 0.035* | |
| C4 | 0.0533 (3) | −0.0964 (3) | 0.6907 (3) | 0.0306 (7) | |
| H4 | 0.0115 | −0.1635 | 0.6329 | 0.037* | |
| C5 | 0.2857 (2) | 0.3295 (3) | 0.7389 (3) | 0.0220 (6) | |
| C6 | 0.3798 (2) | 0.5829 (3) | 0.7233 (3) | 0.0250 (6) | |
| C7 | 0.3034 (3) | 0.6385 (4) | 0.6108 (4) | 0.0438 (9) | |
| H7A | 0.2928 | 0.5554 | 0.5446 | 0.066* | |
| H7B | 0.3384 | 0.7280 | 0.5663 | 0.066* | |
| H7C | 0.2292 | 0.6684 | 0.6483 | 0.066* | |
| C8 | 0.4940 (3) | 0.5271 (4) | 0.6722 (4) | 0.0445 (9) | |
| H8A | 0.5384 | 0.4856 | 0.7480 | 0.067* | |
| H8B | 0.5354 | 0.6135 | 0.6310 | 0.067* | |
| H8C | 0.4823 | 0.4458 | 0.6045 | 0.067* | |
| C9 | 0.3945 (3) | 0.7083 (3) | 0.8284 (4) | 0.0459 (9) | |
| H9A | 0.3196 | 0.7408 | 0.8617 | 0.069* | |
| H9B | 0.4337 | 0.7970 | 0.7878 | 0.069* | |
| H9C | 0.4399 | 0.6685 | 0.9040 | 0.069* |
| S1 | 0.0369 (4) | 0.0261 (3) | 0.0194 (3) | −0.0050 (3) | 0.0003 (3) | −0.0034 (3) |
| O1 | 0.0377 (11) | 0.0268 (9) | 0.0173 (10) | −0.0043 (8) | 0.0014 (9) | −0.0012 (8) |
| O2 | 0.0425 (12) | 0.0258 (10) | 0.0182 (9) | −0.0120 (8) | 0.0029 (9) | 0.0003 (8) |
| N1 | 0.0293 (13) | 0.0232 (11) | 0.0147 (9) | −0.0051 (9) | 0.0006 (10) | −0.0009 (10) |
| C1 | 0.0234 (13) | 0.0211 (12) | 0.0183 (12) | 0.0033 (11) | 0.0000 (11) | −0.0012 (11) |
| C2 | 0.0277 (16) | 0.0226 (13) | 0.0221 (13) | 0.0002 (11) | −0.0017 (11) | 0.0006 (11) |
| C3 | 0.0300 (16) | 0.0227 (14) | 0.0340 (15) | −0.0037 (12) | −0.0002 (13) | 0.0029 (13) |
| C4 | 0.0329 (18) | 0.0259 (15) | 0.0330 (15) | −0.0030 (12) | −0.0029 (14) | −0.0039 (13) |
| C5 | 0.0238 (15) | 0.0227 (14) | 0.0195 (15) | 0.0016 (11) | −0.0023 (11) | −0.0005 (11) |
| C6 | 0.0288 (17) | 0.0228 (14) | 0.0234 (13) | −0.0047 (12) | 0.0053 (11) | 0.0019 (11) |
| C7 | 0.0453 (19) | 0.0306 (15) | 0.056 (2) | −0.0046 (14) | −0.0128 (18) | 0.0135 (16) |
| C8 | 0.0299 (17) | 0.0339 (16) | 0.070 (2) | −0.0022 (13) | 0.0128 (18) | 0.0021 (16) |
| C9 | 0.070 (2) | 0.0327 (17) | 0.0347 (17) | −0.0212 (17) | 0.0122 (17) | −0.0068 (15) |
| S1—C4 | 1.718 (3) | C4—H4 | 0.9500 |
| S1—C1 | 1.737 (3) | C6—C7 | 1.507 (4) |
| O1—C5 | 1.216 (3) | C6—C8 | 1.511 (4) |
| O2—C5 | 1.337 (3) | C6—C9 | 1.512 (4) |
| O2—C6 | 1.484 (3) | C7—H7A | 0.9800 |
| N1—C5 | 1.356 (3) | C7—H7B | 0.9800 |
| N1—C1 | 1.396 (3) | C7—H7C | 0.9800 |
| N1—H1N | 0.90 (2) | C8—H8A | 0.9800 |
| C1—C2 | 1.365 (4) | C8—H8B | 0.9800 |
| C2—C3 | 1.418 (4) | C8—H8C | 0.9800 |
| C2—H2 | 0.9500 | C9—H9A | 0.9800 |
| C3—C4 | 1.350 (4) | C9—H9B | 0.9800 |
| C3—H3 | 0.9500 | C9—H9C | 0.9800 |
| C4—S1—C1 | 90.88 (14) | C7—C6—C8 | 112.6 (3) |
| C5—O2—C6 | 121.3 (2) | O2—C6—C9 | 103.0 (2) |
| C5—N1—C1 | 124.9 (2) | C7—C6—C9 | 110.2 (3) |
| C5—N1—H1N | 117 (2) | C8—C6—C9 | 111.0 (3) |
| C1—N1—H1N | 118 (2) | C6—C7—H7A | 109.5 |
| C2—C1—N1 | 125.4 (2) | C6—C7—H7B | 109.5 |
| C2—C1—S1 | 111.5 (2) | H7A—C7—H7B | 109.5 |
| N1—C1—S1 | 122.77 (19) | C6—C7—H7C | 109.5 |
| C1—C2—C3 | 112.2 (3) | H7A—C7—H7C | 109.5 |
| C1—C2—H2 | 123.9 | H7B—C7—H7C | 109.5 |
| C3—C2—H2 | 123.9 | C6—C8—H8A | 109.5 |
| C4—C3—C2 | 113.0 (3) | C6—C8—H8B | 109.5 |
| C4—C3—H3 | 123.5 | H8A—C8—H8B | 109.5 |
| C2—C3—H3 | 123.5 | C6—C8—H8C | 109.5 |
| C3—C4—S1 | 112.3 (2) | H8A—C8—H8C | 109.5 |
| C3—C4—H4 | 123.8 | H8B—C8—H8C | 109.5 |
| S1—C4—H4 | 123.8 | C6—C9—H9A | 109.5 |
| O1—C5—O2 | 126.4 (2) | C6—C9—H9B | 109.5 |
| O1—C5—N1 | 123.9 (2) | H9A—C9—H9B | 109.5 |
| O2—C5—N1 | 109.6 (2) | C6—C9—H9C | 109.5 |
| O2—C6—C7 | 110.9 (2) | H9A—C9—H9C | 109.5 |
| O2—C6—C8 | 108.8 (2) | H9B—C9—H9C | 109.5 |
| C5—N1—C1—C2 | 177.5 (3) | C1—S1—C4—C3 | −0.9 (3) |
| C5—N1—C1—S1 | −8.9 (4) | C6—O2—C5—O1 | 3.3 (4) |
| C4—S1—C1—C2 | 0.9 (2) | C6—O2—C5—N1 | −176.4 (2) |
| C4—S1—C1—N1 | −173.5 (2) | C1—N1—C5—O1 | −7.8 (4) |
| N1—C1—C2—C3 | 173.6 (2) | C1—N1—C5—O2 | 171.9 (2) |
| S1—C1—C2—C3 | −0.7 (3) | C5—O2—C6—C7 | 54.5 (3) |
| C1—C2—C3—C4 | 0.0 (4) | C5—O2—C6—C8 | −69.8 (3) |
| C2—C3—C4—S1 | 0.7 (4) | C5—O2—C6—C9 | 172.4 (3) |
| H··· | ||||
| N1—H1 | 0.90 (2) | 2.04 (2) | 2.920 (3) | 165 (3) |
| C7—H7 | 0.98 | 2.33 | 2.938 (4) | 119 |
| C8—H8 | 0.98 | 2.55 | 3.109 (4) | 116 |
Hydrogen-bond geometry (Å, °)
|
|
| H⋯ |
|
|
|---|---|---|---|---|
| N1—H1 | 0.90 (2) | 2.04 (2) | 2.920 (3) | 165 (3) |
| C7—H7 | 0.98 | 2.33 | 2.938 (4) | 119 |
| C8—H8 | 0.98 | 2.55 | 3.109 (4) | 116 |
Symmetry code: (i) .